Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
bibisco - bibisco is a novel writing software.
Manuskript - Open-source tool for writers.
FocusWriter - FocusWriter is a fullscreen, distraction-free word processor designed to immerse you as much as...
WriteFreely - Write Freely is free and open source software for starting a minimalist, federated blog — or an entire community.
Nulis - Tree editor for writers, makes outlining your stories and articles easy, fun, and convenient.